getprop("ro.product.device") == "lancelot" || abort("E3004: This package is for \"lancelot\" devices; this is a \"" + getprop("ro.product.device") + "\".");
ui_print("Source: Redmi/lancelot_in/lancelot:10/QP1A.190711.020/V11.0.6.0.QJCINXM:user/release-keys");
ui_print("Target: Redmi/lancelot_in/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCINXM:user/release-keys");
ui_print("Verifying current system...");
getprop("ro.build.fingerprint") == "Redmi/lancelot_in/lancelot:10/QP1A.190711.020/V11.0.6.0.QJCINXM:user/release-keys" ||
    getprop("ro.build.fingerprint") == "Redmi/lancelot_in/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCINXM:user/release-keys" ||
    abort("E3001: Package expects build fingerprint of Redmi/lancelot_in/lancelot:10/QP1A.190711.020/V11.0.6.0.QJCINXM:user/release-keys or Redmi/lancelot_in/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCINXM:user/release-keys; this device has " + getprop("ro.build.fingerprint") + ".");
show_progress(0.100000, 10);
patch_partition_check("EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:d835bea09c063a275b32a12b1e5d7d748b4888ab",
                      "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:6122bd6292184b0eb82db079ce0d0deed4752320") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:d835bea09c063a275b32a12b1e5d7d748b4888ab\" or \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:6122bd6292184b0eb82db079ce0d0deed4752320\" has unexpected contents.");
apply_patch_space(67108864) || abort("E3006: Not enough free space on /cache to apply patches.");
patch_partition_check("EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:773607398f10da3d6d8d4f6b447da1942c2f218c",
                      "EMMC:/dev/block/platform/bootdevice/by-name/md1img:59032880:2548a623863a17baafac09ecbc391da53a0bdb87") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:773607398f10da3d6d8d4f6b447da1942c2f218c\" or \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:59032880:2548a623863a17baafac09ecbc391da53a0bdb87\" has unexpected contents.");
apply_patch_space(59070448) || abort("E3006: Not enough free space on /cache to apply patches.");
show_progress(0.100000, 70);
if (range_sha1(map_partition("system"), "190,1,193,194,32770,32915,34158,34174,34176,34182,57798,58485,58487,58511,86092,87161,90628,90635,98306,98451,163842,163987,171703,172266,172268,172286,175273,175274,229378,229523,294914,295059,301413,301417,302524,302528,335910,336001,336694,336876,341437,341511,355788,355838,363812,363849,364308,364311,364339,364405,365069,368778,368779,368802,369906,369910,373361,373364,373498,373500,376757,378462,378463,378477,397727,397760,397813,398129,399165,399485,426827,431097,431660,431791,431941,432074,432891,433021,433171,433304,438311,439352,496757,497468,497963,498197,498202,498211,503336,503342,503344,503365,503400,503416,503418,503420,503430,503431,503433,503434,503436,503438,503440,503441,503444,503445,503452,503457,503486,503487,503495,503496,503502,503505,503518,503520,503534,503536,503554,503555,503615,503617,503633,503639,503642,503652,503689,503703,503705,503708,503721,503722,503723,503726,503731,503732,503740,503744,503775,503776,503784,503786,503792,503794,503807,503809,503825,503827,503828,503829,503854,503856,503860,503861,503880,503881,503902,503904,503956,503959,504027,504029,504041,504042,504087,504100,504458,504477,504478,504550,506280,506286,506287,506413,508622,509429,509430,509435,509437,509506,509542,509543,589839,589845,595789,595800,595806,597620,607090,607222,607223") == "b2bfa0ba83bcf2df95c1258bedc924e8159450f1" || block_image_verify(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat")) then
ui_print("Verified system image...");
else
check_first_block(map_partition("system"));
ifelse (block_image_recover(map_partition("system"), "190,1,193,194,32770,32915,34158,34174,34176,34182,57798,58485,58487,58511,86092,87161,90628,90635,98306,98451,163842,163987,171703,172266,172268,172286,175273,175274,229378,229523,294914,295059,301413,301417,302524,302528,335910,336001,336694,336876,341437,341511,355788,355838,363812,363849,364308,364311,364339,364405,365069,368778,368779,368802,369906,369910,373361,373364,373498,373500,376757,378462,378463,378477,397727,397760,397813,398129,399165,399485,426827,431097,431660,431791,431941,432074,432891,433021,433171,433304,438311,439352,496757,497468,497963,498197,498202,498211,503336,503342,503344,503365,503400,503416,503418,503420,503430,503431,503433,503434,503436,503438,503440,503441,503444,503445,503452,503457,503486,503487,503495,503496,503502,503505,503518,503520,503534,503536,503554,503555,503615,503617,503633,503639,503642,503652,503689,503703,503705,503708,503721,503722,503723,503726,503731,503732,503740,503744,503775,503776,503784,503786,503792,503794,503807,503809,503825,503827,503828,503829,503854,503856,503860,503861,503880,503881,503902,503904,503956,503959,504027,504029,504041,504042,504087,504100,504458,504477,504478,504550,506280,506286,506287,506413,508622,509429,509430,509435,509437,509506,509542,509543,589839,589845,595789,595800,595806,597620,607090,607222,607223") && block_image_verify(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat"), ui_print("system recovered successfully."), abort("E1004: system partition fails to recover"));
endif;
if (range_sha1(map_partition("vendor"), "18,1,819,837,838,843,10893,13745,32770,32806,98306,98342,131101,131102,150991,151459,153863,153908,153909") == "24d4372bffcac69630cf88af14f55ef5c697f40e" || block_image_verify(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat")) then
ui_print("Verified vendor image...");
else
check_first_block(map_partition("vendor"));
ifelse (block_image_recover(map_partition("vendor"), "18,1,819,837,838,843,10893,13745,32770,32806,98306,98342,131101,131102,150991,151459,153863,153908,153909") && block_image_verify(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat"), ui_print("vendor recovered successfully."), abort("E2004: vendor partition fails to recover"));
endif;
if (range_sha1(map_partition("product"), "16,1,32770,32829,98306,98365,163842,163901,229378,229437,229441,229444,241484,242214,246054,246117,246118") == "54689521d38a109625064a9a78732fecc2a5b32e" || block_image_verify(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat")) then
ui_print("Verified product image...");
else
ifelse (block_image_recover(map_partition("product"), "16,1,32770,32829,98306,98365,163842,163901,229378,229437,229441,229444,241484,242214,246054,246117,246118") && block_image_verify(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat"), ui_print("product recovered successfully."), abort("E2004: product partition fails to recover"));
endif;

# ---- start making changes here ----

ui_print("Patching boot image...");
show_progress(0.100000, 10);
patch_partition("EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:d835bea09c063a275b32a12b1e5d7d748b4888ab",
                "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:6122bd6292184b0eb82db079ce0d0deed4752320",
                package_extract_file("boot.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:6122bd6292184b0eb82db079ce0d0deed4752320");
show_progress(0.600000, 600);

# --- Start patching dynamic partitions ---


# Patch partition vendor

ui_print("Patching vendor image after verification.");
block_image_update(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat") ||
  abort("E2001: Failed to update vendor image.");

# Update dynamic partition metadata

assert(update_dynamic_partitions(package_extract_file("dynamic_partitions_op_list")));

# Patch partition product

ui_print("Patching product image after verification.");
block_image_update(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat") ||
  abort("E2001: Failed to update product image.");

# Patch partition system

ui_print("Patching system image after verification.");
block_image_update(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat") ||
  abort("E1001: Failed to update system image.");

# --- End patching dynamic partitions ---

show_progress(0.100000, 2);
show_mtupdate_stage("/cache/recovery/last_mtupdate_stage");
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "1") ,
(
ui_print("start to update general image");
package_extract_file("logo.bin", "/dev/block/platform/bootdevice/by-name/logo");
package_extract_file("dtbo.img", "/dev/block/platform/bootdevice/by-name/dtbo");
package_extract_file("exaid.img", "/dev/block/platform/bootdevice/by-name/exaid");
ui_print("Patching md1img image...");
show_progress(0.100000, 10);
patch_partition("EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:773607398f10da3d6d8d4f6b447da1942c2f218c",
                "EMMC:/dev/block/platform/bootdevice/by-name/md1img:59032880:2548a623863a17baafac09ecbc391da53a0bdb87",
                package_extract_file("patch/md1img.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/md1img:59032880:2548a623863a17baafac09ecbc391da53a0bdb87");
package_extract_file("spmfw.img", "/dev/block/platform/bootdevice/by-name/spmfw");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "1");
),
ui_print("general images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "3") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "2") then

ui_print("start to update alt loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_2");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp2");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk2");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee2");
if get_storage_type() then 
 assert(package_extract_file("preloader_ufs.img", "/dev/block/mmcblk0boot1"));
else 
 assert(set_emmc_writable("/sys/block/mmcblk0boot1/force_ro"),
        package_extract_file("preloader_emmc.img", "/dev/block/mmcblk0boot1"));
endif;
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "2");
endif;

switch_active("sspm_1", "sspm_2");
switch_active("scp1", "scp2");
switch_active("lk", "lk2");
switch_active("tee1", "tee2");
switch_active("preloader", "preloader2");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "3");
),
ui_print("alt loder images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "5") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "4") then

ui_print("start to update main loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_1");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp1");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee1");
if get_storage_type() then 
 assert(package_extract_file("preloader_ufs.img", "/dev/block/mmcblk0boot0"));
else 
 assert(set_emmc_writable("/sys/block/mmcblk0boot0/force_ro"),
        package_extract_file("preloader_emmc.img", "/dev/block/mmcblk0boot0"));
endif;
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "4");
endif;

switch_active("sspm_2", "sspm_1");
switch_active("scp2", "scp1");
switch_active("lk2", "lk");
switch_active("tee2", "tee1");
switch_active("preloader2", "preloader");
),
ui_print("main loader images are already updated");
);
delete("/cache/recovery/last_mtupdate_stage");
package_extract_file("vbmeta_system.img", "/dev/block/platform/bootdevice/by-name/vbmeta_system");
package_extract_file("vbmeta.img", "/dev/block/platform/bootdevice/by-name/vbmeta");
package_extract_file("vbmeta_vendor.img", "/dev/block/platform/bootdevice/by-name/vbmeta_vendor");
post_ota_action();
